There are a number of instruments that can be used in observation. You could use a telescope or microscope for example.
Telescopes are used for observing stars.
AN OBSERVATION IS INFORMATION GATHERED THROUGH THE USES OF THE SENSES OR WITH AID OF INSTRUMENTS
The main astronomical instruments are the armillary sphere, the triquetrum, the quadrant, the astrolabe, and the various kinds of telescopes. These instruments are all used to observe, measure, and study celestial bodies. They can be used to collect data on planets, galaxies, radiation, stars, nebulas, etc.
As Tasmania is one of Australia's states, the instruments used there will be the same as the instruments used throughout Australia. there is a great variety of westernised instruments, as well as instruments from other cultures.
No instruments are used in this song
The instruments used in rave bands are electronic instruments. They do not use actual instruments that you hold in your hand, everything is done electronically.
the instruments in mathematics
themometre
your nans instruments
What instruments are used in triosonataType your answer here...
What musical instruments are used in bad romance
The instruments used are the trumpet, the trombone, and the harp